630320423 has 16 divisors (see below), whose sum is σ = 668196000. Its totient is φ = 593682432.

The previous prime is 630320399. The next prime is 630320447. The reversal of 630320423 is 324023036.

It is an interprime number because it is at equal distance from previous prime (630320399) and next prime (630320447).

It is not a de Polignac number, because 630320423 - 2⁸ = 630320167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630320023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233063 + ... + 235751.

It is an arithmetic number, because the mean of its divisors is an integer number (41762250).

Almost surely, 2^630320423 is an apocalyptic number.

630320423 is a deficient number, since it is larger than the sum of its proper divisors (37875577).

630320423 is a wasteful number, since it uses less digits than its factorization.

630320423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 630320423 is about 25106.1829635650. The cubic root of 630320423 is about 857.4072003318.

Adding to 630320423 its reverse (324023036), we get a palindrome (954343459).

The spelling of 630320423 in words is "six hundred thirty million, three hundred twenty thousand, four hundred twenty-three".